Oil-burner



J. Fr KRAUS.

OIL BURNER.

APPLICATION FILED SEPT.28 I920- 1,399,626. Patented Dec. 6,1921.

Fig.2.

( /f INVENTOR m-ronuay citizen of the United Pittsburgh, in thecounty ofAllegheny and ason P. menus, or rirrsnunorr, iennnsrtvnnra.

To all whom it mayconcem I Be it known that I, Jaoon I linens, atit-ates, residing at fltate of Pennsylvania, have invented new anduseful Improvements in. Oil-Burners, of which the following is aspecification.

This invention relates to oil burners, and more particularly to a burnerspecially adapted for burning the heavier fuel oils.

One of the main objects of the invention is to provide a burner ofsimple construction and operation which will insure thorough mining ofthe oil with air so as to obtain complete combustion of the oil andproduce intense heat. A further object is to provide a burner in whichtheoil is distributed over a relatively great area and is then subjectedto the action of a r currents so as to be ra "idly evaporated and mixedwith the Z1112 Another object is to provide means whereby a whirlingmovement is imparted to the oil and air "so as toinsure thoroughintermingling and mixing of the same and produce a mixture. of uniformconsistency.

Further objects will appearfrom the detailed description.

In the drawings Figure l is a central vertical sectional view of aburner constructed in accordance with my invention. a i

F 2 is a section taken substantially on line2-2 of Fig. 1.

Fig. 3 is a fragmentary plan view of. the inner air tube and associatedparts. The burner includes a cylindrical bod 1 provided atone end withan enlarged in take socketQ and at the other end with a squared portionor block 3 which is cored out to provide a nozzle 4'. i

Artube 5 is supported within body 1 and issecured by set screws 6. Thistube is disposed substantially co-axially with body 1 and is providedwith an angular strip or thread 7 which is secured to the inner face aof the tube and forms helical threads extending about the inner face ofthe tube.

This member 7 serves to impart to air flow ing through tube 5 a whirlingor rotary motion. The tube is further provided at its forward end with abent up member which is shaped to form a deflector or spraying plate 8of substantially flattened ll-shape. An oil tube 9 extends throughrearward wall 1 of body 1 and projects into the body above the tube 5,this tube 9 having its innerend re- Specification of Letters Patent.

urn-summit.

Patented lice.

duced to form a tapered oil discharge nozzle l0 by means of which theoil is discharged against the inner face of plate 8 at the centralportion thereof, this plate serving to divide the oil and to cause it toflow downwardly over and about tube 5.

In practice air is admitted under pressure in to member 2 and flowsthrough body 1. Part of this air flows about tube 5 so as to remove theoil which flows over the outer surface of this tube, this oil beingrapidly absorbed by the air and intimately mixed therewith. A centralcurrent or column of air flows through tube and has a whirling motionimparted to it by the rib or vane member 7. Any oil which is not removedfrom the outer surface of tube 5 by the air will drip into an arcuatepan ll which is supported below the forward portion of tube 5 by certainof the set screws 6 and by rivets 12, or in any other suitable manner.Any oil which may drip into pan ll'will be re moved by the air flowingthrough the pan,

and this mixture of oil and air, together with the air and oil flowingfrom about tube 5, will be acted upon by the air column flowing throughtube 5, the three air currents converging and intermingling so as tocause onto the upper portion of the tubular member.

2. In an oil burner, a hollow body provided at one end with a dischargenozzle, a tubular member supported within said body in spaced relationthereto, means for spraying oil onto the upper portion of the'outersurface of said tubular member, and a pan positioned beneath and inspaced relation to the tubular member.

3. In an oil burner, a-body provided at one end with a discharge nozzle,a tubular member supported within said body in spaced relation theretoand open at both ends, means for imparting a whirling motion to acurrent of air flowing through the at both ends, and means fordischarging oil V tubular member, and means for spraying oil 7 onto theouter surface of said tubular memagainst said plate, said tubular memberbeing disposed substantially coaxially with the body and being open atboth ends.

5. In an oil burner, a hollow body, a tubular member supported withinsaid body substantially coaxially thereof and open at both ends, a plateprojecting upwardly from said tubular member, an oil supply tubedisposed to discharge oil against said plate, an oil receiving pansupported beneath the lower portion of the tube and spaced away from thesame and the body, and means for in1- parting a whirling motion to airflowing through the tube.

In testimony whereof I afiix my signature.

JACOB F. KR-AUS.

